Sea mine



E. OSEGOVIC May. 29; :1 92.3.

SEA MINE 3 Sheets-Sheet 1 Filed Jun9v3O 1921 OWN WNV

' Arrohwn May 29, 1923.

EL OSEGOVIC SEA MINE Filed June 50 1921 3 Sheets-Sheet 2 May 29,- 1923,1,456,646-

7 E. OSEGOVIC,

SEA MINE Filed June 30, 1921 3 Sheets-Sheet 5 INVENTOR Patented May 29,1923.

' "steam O SEGOVIC, or 3306mm unit ionic sea MINE.

Application filed nine 30, i521; sei-ial' irel' lsjij49l.

To all wh'om it may concern: V

Be it known that I, EUGENE Osiis'o'vro, a

' citizen of Italy, residing at Brooklyn, in

v by the novel construction, combinati the eoui tj of iings anchState ofNew York, have invented certain "neiv and astral-jimprovenients inSea'Mine's, of which the following is a 'spe'ci fication. v p

The object of this invention is to provide a'sea inine adapt'ed to'hesubmerged and havinp' ithin the structure 'nieans for detonation ofexplosives contained in it's casing.

Another o'hj'ect is the nieans provided for causin g explosion iyithinthe sealed casing upon con'tact of extending elements with fixedobjects. I p

f Athird object is in the provision of means whereby the bomb ma berendered in active Without cletona'ting the explosives carried by it. IThese and other-like objects are obtained on and arrangement of parts,hereinafter described and showni'n the accompanying drawings, forming amaterial part of this disclosure, and Which:' V I Figure l is a side'elevja tional View of a bomhftheveXplosion chamber being partiallybroken away to Show the mechanism.

Figure 2 is a fra gmental side elevation'al View of the cable drumframe, broken away to show the ivate r Valve chamber, showing the valvecontrol mechanism released position after towing inof the mine has beenbe un; r igure 3 is a partial sectional, partial side elevational 'viewof'thecont'rol mechanism, the View .being taken' in a plane at rightangles to FigureQ, and with the cable checking mechanism shown in itsintermediate position after the mine has been placed in the Water. I v pI H Figure 4: is a bottoin plan view showing the contact fingers infiring position, the bottom of the casing being omitted' I Figure 5 is afragmental side eleva'tional View of the frameshowing the automaticfiring control mechanism. v

Figure 6 is a similar View of the opposite side of the frame showing theautomatic water valve control, in locked position.

Fig. 7 is a View of; the mechanism shown in Fig. 5 but with the cablechecking mechanis m shown in intermediate position as the c'ablecheckingmechanism infl oc dffig SitiOnbef ep'la eing themin e inth Iafter, ith members/ 'tmdfiQ zuidiGOf reino'v'ed "tor tl ielsakie o ficle ar iiess. R v

i ef r e" to em aw estlw. de im 1O designates a holloii cdiiicalflmetalffl i efk fit ib C EI KI itifla 16 sh porting the inner ends of aplurality pass freely out through sl0ts'20 in theiipfii' v edgejof the10.

[Extending nto the explosion adjacent the u er pe tinii "6% the h b 12;,

is a ti h 21 held hy bolts 2 215as'sin t irou h its stem 26 passingthrough he and slidably' enga ing; t git 'e '27- li-a vin an angula'r'cam-like upper end, and is 31 fo ided wima a 'e d errat c engage aiiilrench for po'siti ng the' part's fas l, that'i s, to lo'ck'thefiring pin against acti0n j.until released moving the locking leifer toall'oiv' the sl eeve' pint fall. ;The

as id, news min enemies N ws .i' s eer w Tm i 'ejfl iiin about beforeplacing it in theii'iater, soth'at, even if by a c cident the V cdkiiig151 1 35 should be released, the l eirer 30 Melanievent release'pf thesleev 28,,andhence oif'the firing pin, 216.

26 is a rigid arm 34 having at its outer end a pin 35 engageable with araised foot 36, integral-with the flange 16 and in which position thefiring for firing as shown in Figure 1.

A notch 40, formed in the flange 16, is receptive of a lockin cam 41,secured to a spindle 42, rotatable 1n the 'forked bearings 43 and 44,fixed-to the partition plate 13. The-s uared; end 421 of the spindlepasses throug an openingin the casing 10 in a manner permitting manualoperation.

Secured to the spindle '42, between the forks of thebearing 43, is anextending a the end of a rod 50, the same lever arm 46, provided with anelongated slot 48 adapted to pivotally, and slidably receive a. pin.49transversely connected to extending through the partition plate 13- anda stuffing box 11 in the lower closed end 11 of the casing; The; rod 50terminates in a forked end 51, within which is pivotally secured aconnectinglink' 52, its outer end having an elongated slot 53, engaginga pivot screw 54"secu'red through the; forked element of a springactuated operating arm, generally designated by the numeral 60, to whichref- 7 erence will again bernade and its purpose disclosed. 4 1 vRigidly attached to the convex surface of thecasing base 11 are a pairof frame brackets 6,1Qand 62, heldin parallel spaced relation by spacingrods 63. Between the frames'61 and 62 is mounted a tubular casing 64,its largerend being secured to the inside of the frame 61, and itsreduced extension65 is supported by a hollow screw 66 I adjustment.

. A plunger 70 is slidable within the tube 67, itssmaller end engaging adisc 71, disposed within the opening in the frame 61, and forced outwardby the compression spring 72, acting between the plug 68 and the plunger70. I l

I 74,'in contact with disc 71 is secured againstthe 'frame 61 by a. ring7 5 held by suitable fastening means.

, Forks 7 6, fixed tothe disc 71, extend outwardly through the diaphragn74 and pivotally engage a cam 78 the same being an element of a lockingarm, generally desig nated by the number 77,.and having a parallelextension 79 pivotally engaged in a slotted clip 80, fixed to the sideframe 61, the opposite end 7 7 of the locking arm terminating in ,anangularly bent projection 81,

' forminga grip for manual operation.

, cylindrical casing is rotatably mounted. on a stud92, fixed to theside frame pin 25 is cooked or set.

61, the stud having a slot 93 to retain the inner bent: end of aspiral-spring 94 loosely encircling the stud and having its outerendengaged inthe casing 90, a nut 96 holding the armin place. The casing90 is formed like a hollow shell of cylindrical shape, rotatable aboutthe stud 92 and being normally urged by the spring 94 in-acounter-clockwise direction .(Fig. 5), thus mentioned) Formed upon thecasing 90 are-toothed projections 97 and 98 to engage with a gear 100;also from .said casing extends an. arm 101 rigid with. arm 60 providedwith a transverse slot in which is rotatably mounted a roller .102adapted to make acontact with theca'm78 A cable drum 110, upon whichis'wound a cable 115', is located between the upper opening. in whichthe shaft111 may be moved in the manner of a universal joint, the hub113 having its opposite end passing through an opening in the frame 61and portions of the frames, 61 and 62,and is v on which is mounte'dfthegear 100,.held in place by a nut 114. Pressure of the; inclined surface,of the cam' 78 against the roller 102, caused by the spring 72 actingthru plunger 70 and disk 71, acts as alock to hold the arm 101. in itsnormal position, as shown in Figs. 1 and 8, before the mine is placed inthe water. Then, with the cable checking mechanism in the lockedposition shown in Figs. 1 and 8, the tooth 97 engages the gear 100 andprevents rotation of the drum and paying out of the cable belowmentioned. As soonas the mine is placed in the 1 water, pressure of thelatter on the diapliragm 74 will cause the diaphragm to move partwayinagainst the force of the "spring 72. Thus the cam 78 Will be drawn awayfrom the roller 102 and will release the lat ter, allowing it tO1I1OV6-lI1 a counter-clock wise direction owing to the force of thespring 94. into the intermediate position shown in Figs. 3 and 7 inwhich the roller is checked from further movement by the pro jection'81..Then, as isapparent in Fig.7, both teeth 97 and. 98 will be free ofthejgeai" .100. and said' 'gear and hence alsov the drum thediaphragm'74 will force the latterback farther, until the projection 81will have 110, will be free to rotate, which they will do i beenwithdrawn clear of the' roller 102,

allowing the roller to move farther in the counter-clockwise directionowing .to the 7 spring 94 t,until the tooth-98 will engage the andkeepingthe mine anchored. When letend'ot the cable 115 is secured to theboat orto any suitable anchorage, and the mine is allowed tosink anddrift as above-mentioned. Or the cradle 200 may be tossed overboardbefore-the mine, or with it, 11" the 1. A second-cable, not shown, issecured to a suitable Windlass on the boat, and to the eyelets 205 onthe cover 12. This is for towing-in purposes only, and it is generallyout soon after the mine has gone overboard;

however, it is provided for'the event that the mine may have to bebrought back to the boat before being exploded.

A block 120, secured to the outer axis of the casing 10, is bored toreceive a plunger 121, havinga reduced rear end 122 extending through anopening formed in the outer portion ofthe block 120. A coiled Icompression spring 122 surrounds the stem; v 9 122within the shell 120and normally tends to draw the plunger 121 back into the shell andthusisaid-spring normally keeps the valve mechanismreleasably locked inthe closedposition shown in Fig. 6. The detent pin 137 acts asfa checkto the lever 135 by engagement with the slot132 when the mechanism hasbeen released and is in the position shown in Fig. 2. Anelongatedftransverse slot 123 in the plunger 121 thus allows the cabledrum shaft 111 to operate therein, I the projecting portion 125 of theshaft having a squared end for manual rotation.

"The'plunger 121 is slotted at its opposite endto receive one end of abell-crank lever 12?, pivotally attached to the frame 62 by a screw128,the short arm 126 of the bellcrank lever terminating in a detent 129engageable with the end of a valve operating lever 130 projectingthrough a slot 131 in the frame 62.

An operating lever 135 is pivoted, as at 133, to the face of the block120, the lever having a. projecting arm 135 to which is i attached aplate 136. I The opposite end ofthe lever 135 has a shallow recess 132engage able with a detent pin 137 fixed in the upper part of the frame62.

A connecting link 140 is pivoted at its ends to the levers 127 press theplunger block 120 outwardly.

When the lever 135 is moved in a counter:

clockwise direction, as will be apparent be-;-' low, from its normalpositionas shown in" 'face of i v the frame 62 angularly with respecttothe- Fig; 6, it will swing the lever 127 in'a clockwise direotlon, thus,as is obv1ous,-releas1ng the lever 130 and: allowing the valve 147 toopen to -let water into the mine. ting out the mine into the water, thetree Secured in the casing head- 11 is a bushing. 145' to which isattached a'cover plate 146,

having a conical opening forming a seat for the valve 147, thestcmj 148of which passes through a guideplate 149 and engages the forked end ofthe lever 130, which is pivtoward its open position closed. by acornressions rin 152 actin a ainst the valve headand the guide plate149. A plurality of openings'155 are provided through the bushing 145,foradmitting water'to' the interior of the casing when the valve israised,

saturating the explosives and thereby ren- 'dering the bomb inactive.

Referring to Figure 1, the cover 12 is shown to conta n a chamber 160having an opening in the bottom through which the iiring pin may beremoved and adjustments affected, when the hinged cover '164is open. Formed with the cover 164', opp

osite the hinge 165 is an angle catch 16 --pas'sing *through a slot inthe base, an opening being provided in the catchfor the entrance of a""bolt'166, operated by a lever 168 pivoted to aforked bracket 170-securedto the inside of the cover, the lever 168 extending outwardthrough a slot in the base and aflording means for releasing the cover164.

It will be seen that the entire firing pin mechanismattached to the disc14C, may be removed from the casing by taking out the bolts 15 and whenthe disc is removed, eX-

plosives 190 may be placed in the casing.

A wheeled carriage, generally designated by thenu nber 200, is providedon Whichthe bomb, secured bya strap 201 held by the pin ,202, may bemovedabout, the'carr'iage consisting essentially of a weighted framehaving curved supporting arms 203 braced by cross bars 204 onwhich thebomb normally v rests.

In operation,th e strap or band 201ibeing released, the bomb is enteredinto the sea,

fullyfcharged and assembled. I As previously mentioned, with therespective parts 01' the mi'nein the positions shown in Figures 1, 6,and 8, therod31-i's' rotated by a wrench to release the lever 30'fromthe sleeve 28 so that the mine maybe exploded upon release oftl'iefcockingpin 35, the device is lowered into the water by means ofthe cable (not shown) attached tothe eyelets 205. lVhen the mine isinthe watery pressure on" the diaphragmdd causes the'latter to moveslightly inward, allowing the'roller 102 to escape'from the cam :78 andto move,

with the arm lOl, in"a-counter-clockwise di- I .rection (Fig. 7) intothe intermediate position shown-in 7, .in which the roller is checked bythe projection 81,'and both teeth. 97 and 98 are free of thegear.100,.and the. latter, because of the weight of the minetennae'being adapted, uponimpact with a and the cable 115; wound on thedrum 110,

will be rotated as thefmine driftsand sinks. WVhen the minehas'reachedits proper depth,

as regulated by the pressure of thespring 7 2, the diaphragm will befarther pushed in 100 and preventing furtherrotation-of the cable drum110, thus anchoring. the mine;

' Together withthe shell and; ,arm' 1O1,the

- arm moves in the same direction, and by 20 means of its pivot screw 54in engagement with the slot 53, moves the link 52 into the positionshownin Fig. 5, thereby pulling the arm 50 (F ig. 3). and, thru theengagement 'o'lf't'he pin 49 in the slot 48, turnsthe crank itiandwiththe latterthe spindle 412,-

in alclockwise direction Therei ore, as isapparent'inFig. 4, the cam 41is extracted from the slot 40, whence the flange 16 becomes free torotate. If the minethen 1 comes in contact with any solid object thruanyone of the antennae 17, the latter will turn the collar 16,aboutlthehub 1 1", thus i releasing the pin 35, and thru the rigid conneoting'element 3 1, the stein26, and the lat ter is thenforcedbythespring 82toward the cartridge 24,- which.is then exploded by T.impactot the head If, before explosion, it is desired to re? cover,theminegthe towing cable aforemen- 'tioned but not shown, is taken :in,and themine moves towardthe boat.

rises inthe water, the weight of the water acting against the plate 136.will cause the latter to be forced in a counter-clockwise di-'rectioninto the position shown in Fig.2,

1 against the'iforce of the spring 122. acting thru the plunger 121,1evers127 and 14.0,the

ingits end 129 and allowing the lever 130 to swing. in a clockwisedirection, owing to the force of the spring 152, whence the valve 147opens and lets water into the explosive chamber.

, I cla1mv i 1. A sea mine comprising a casing, a firing pin slidably.mounted co -axial with said.

casing, anexplosive mixture inthe casing adapted to be detonated by saidfiring pin, a

Y hub rigid with saidcasing and surrounding --:,said firing pin, aflange rotatably;mounted:

upon said hub, a foot integral. with said flange, a cooking pin integralwith said firing member to open said valve.

'mounted upon" said hub,

As the mine said cock ngpln against said foot,;a plura ity ofanteiinae,pivotally attached to, and extending tangentially from, saidflange, said ansolid object, to-rotate said flange and foot. to

release said cockingpin and firing pin, and

manually operated safety'means onsaid firing pin to preventtherelease'ofthe latter, a. ,valve 111 the casing. commun catingwith the explosivechamber, a flat member pivotally V .mounted onthe casing and adapted tobe partially rotated by the weightof the water during towing in otthemine, means connecting said' flat member, withjsaid valve operablepartial rotation of said flat 2. A sea mine comprising a casin in'gplliSl'lC lfl'bly mounted co-axial with said casing, an explosivemixture in the casing adapted to be detonated by saidfir ng'pin, a hub.rigid-withsaid casing and surrounding saidfiringf-pin, aflange rotatablya,, foot integral with said flange, a cocking pin integral with said.firing pin, said cocking pin. engaging said foot preparatory to means.urging said cocking pin firing, against against said foot, a pluralityof antennae pivotally; attached to, and extending tangentially from,saidfiange, said antennae "being adapted, I upon, impact with afisolid0bject,'to rotate said and foot-(to release said cocking pin and firingpin, 'a slot in said flange, a locking cam adapted to engage said slotto prevent rotation of the flange,

means for extracting said cam from said slot, and'mea'ns: for actuatingsaid lastnamed means'when themine sinks .to a predetermined, depth, avalve in the casing com-. mun cat ng with the explosive. chamber, a flatmember'piyotally mounted onthe casing and adapted to be partiallyrotated by the weight of the water during towing in of the mine, meansconnecting, said flat member 3. A sea mine comp-rising a,casing,-afiring pin slidably mountedco-axialwith said casing, an explosivemixture in the casing I adapted tobe: detonated by said firing pin,

ed upon said hub,a foot integral with'said' with saidvalve operable bypartial rotation v of said flat member :to, open said valve,

fian e, a cocking pin integral with said fir-' ing pin, said cocking pinengaging said foot preparatory to firing, means urging said cockingpinagainst foot, a plurality.

of {antennae pivotally attached to, and extending tangentially from,said fiange,'said I a'ntennaebeing adapted, upon. impact with a solidobject, to rotatesaidflange and foot to'release said-cocking. pin andfiring pin, a drum mountedon said casing and having a.

preparatory to firing,

cable wound thereon, a gear rigidly mounted eoa-Xially with said drum, arotatably mounted member adjacent said gear and'having two spaced-apartteeth extendin therefrom, one of said teeth being adapted to engage saidgear before launching of the mine to prevent rotation of the drum, theother being adapted to engage said gear after the mine has sunk to apredetermined dept-h, both be ing adapted to lie clear of said gearduring sinking or drifting of the mine, a diaphragm on the outside ofthe casing, resilient. means urging said diaphragm outward, a s ringurging said member to rotate to withdraw 'mounted on the casingand'adapted to be partially rotated by the weight of the water duringtowing in of the mine, means connecting said fiat member with said valveoperable by partial rotation of said flat member to open said valve. f

4:. 4-1 sea mine comprising a casing, a firing pin slidably mounted co-axial with said casing, an explosive mixture in the casing adapted tobe detonated by said firing pin, a hub rigid with said casing andsurrounding said firing pin, a flange rotatably mount-' ed upon saidhub, a foot integral with said iange, a cooking pin integral with saidfiring pin, said cocking pin engaging said foot means urging saidcocking pin; against said foot, a plurality'of antennae pivot-allyattached to, and extending tangentially from, said flan e, said antennaebeing adapted, upon impact with a solid object, to rotate said flangeand foot to release said cocking pin and firing pin, a

drum mounted on said casing andhaving a cable wound thereon, a gearrigidly mounted co-axially with saidv drum, a rotatably mounted memberadjacent said gear and having two spaced-apart teeth extendingtherefrom, one of said teeth being adapted to engage said gear beforelaunching of the mine to prevent rotation of the drum, the

other being adapted to engage said gear after the mine has sunk to apredetermined depth, both'being adapted to lie clear of said gear duringsinking or drifting of the mine,

a diaphragm on the outside of the casing, resilient means urging saiddlaphragm outward, a spring urging said member to rotate to withdrawsaid first-named tooth from e'n gagement with said gear and tobring saidsecond-named tooth into engagement with said gear, releasable-lockingmeans toprevent rotation of said member, means on said diaphragmcontacting wit-h said last-named means, said last-named means beingadapted to be partially released by withdrawal of said means on saiddiaphragm when said diaphragh is forced partway back by pressure of thewater, a projectionon said means on the diaphragm adapted to engage saidreleasable locking means after said partial'release to prevent completerelease, said first-named tooth thereby being withdrawn from engagementwith said-gear Ytof allow free rotation of the drum, said projeo tion'beingfadapted to be'withdrawn from said releasable locking means uponfurther backward movement of the f diaphragm owing to greater pressure,sald second-named tooth thereby being brought intoeng'agement with saidgear to prevent, further rotation of said drum, avalve in the casingcommunicating with the explosive chamber, '7 a fiat member pivotallymounted on the case ing and adapted to be partially rotated by theweight of the water during towing in of the mine, means connecting saidflat mam-- her with said valve operable by partial rotation of said fiatmember to open said valve."

5. A sea mine eomprising' a easing, a firing pin slid'ably mountedco-axial with'said casing, an explosive'mixture in the casing adapted tobe detonated by said firing pin, a hub rigid with said casing andsurrounding said firing pin, afiange rotatably; mounted upon said hub, afoot integral with said flange, 'a cooking pin integral with said firingpin, said cooking pin engaging said foot preparatory to v.1"1ring,.,n1eans urging said cockingpm agamst said foot, a plurality ofantennae pivotally attached to, and. extend ing tangentially from,saidfiange, said an tennm being adapted, upon impact with a solidobject, to rotate said fiangeand foot to release said cocking pin andfiring pin, a valve in the casing communicating with the explosivechamber, a fl'a-tmember p'iv otally mounted on the casing and adapted tobe partially rotated by the weight f h water during towing in of'themine, means connecting said fiat memberwithsaid valve operable bypartial rotation of said "flat member to open said valve. 7 V

' In witness whereof I, afiix my si nature.

EUGENE osn ovr

